IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v16y2023i21p7239-d1266776.html
   My bibliography  Save this article

Experimental Research on the Gas-Solid Flow Characteristics in Large-Scale Dual Fluidized Bed Reactor

Author

Listed:
  • Yubin Lin

    (State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China)

  • Qinhui Wang

    (State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
    Institute for Thermal Power Engineering, Zhejiang University (Yuquan Campus), 38 Zheda Road, Hangzhou 310027, China)

  • Chao Ye

    (School of Mechanical and Energy Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China)

  • Yao Zhu

    (State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China)

  • Haojie Fan

    (School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

Abstract

A dual fluidized bed (DFB) reactor is the main operating system of various energy-efficient and clean utilization technologies. The gas-solid flow characteristics of the DFB reactor greatly affect the efficiency of various technologies. A large-scale DFB reactor with a maximum height of 21.6 m was built and relevant cold mode tests were carried out in this study. The effects of the superficial gas velocity of both beds, static bed height and particle size on the distribution of both pressure and solid suspension density, solid circulation rate, solid inventory distribution ratio and other characteristics were studied. For 282 μm-particles, the solid suspension density in the dense phase zone of the two beds was 100–400 and 400–800 kg/m 3 , respectively, when the static bed height was 0.65 m; the solid circulation rate was about 0.87–1.75, 1.04–3.04 and 1.13–3.69 kg/(m 2 s) when the static bed height was 0.65, 0.95 and 1.25 m, respectively. The solid circulation rate was positively correlated with the static bed height and the superficial gas velocity of both beds, yet negatively correlated with the particle size. Additionally, the empirical equation of solid circulation rate and the empirical equation of solid inventory distribution ratio were proposed, respectively. The material control method of the DFB reactor is put forward.

Suggested Citation

  • Yubin Lin & Qinhui Wang & Chao Ye & Yao Zhu & Haojie Fan, 2023. "Experimental Research on the Gas-Solid Flow Characteristics in Large-Scale Dual Fluidized Bed Reactor," Energies, MDPI, vol. 16(21), pages 1-19, October.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:21:p:7239-:d:1266776
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/16/21/7239/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/16/21/7239/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Kim, Daewook & Won, Yooseob & Hwang, Byung Wook & Kim, Jae Young & Kim, Hana & Choi, Yujin & Lee, Yu-Ri & Lee, Seung-Yong & Jo, Sung-Ho & Park, Young Cheol & Baek, Jeom-In & Nam, Hyungseok & Lee, Doye, 2023. "Loop-seal flow characteristics of a circulating fluidized bed for 3 MWth scale chemical looping combustion system," Energy, Elsevier, vol. 274(C).
    2. Ohlemüller, Peter & Alobaid, Falah & Gunnarsson, Adrian & Ströhle, Jochen & Epple, Bernd, 2015. "Development of a process model for coal chemical looping combustion and validation against 100kWth tests," Applied Energy, Elsevier, vol. 157(C), pages 433-448.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Fan, Junming & Zhu, Lin & Hong, Hui & Jiang, Qiongqiong & Jin, Hongguang, 2017. "A thermodynamic and environmental performance of in-situ gasification of chemical looping combustion for power generation using ilmenite with different coals and comparison with other coal-driven powe," Energy, Elsevier, vol. 119(C), pages 1171-1180.
    2. Lee, Jui-Yuan, 2017. "A multi-period optimisation model for planning carbon sequestration retrofits in the electricity sector," Applied Energy, Elsevier, vol. 198(C), pages 12-20.
    3. Ströhle, Jochen & Orth, Matthias & Epple, Bernd, 2015. "Chemical looping combustion of hard coal in a 1MWth pilot plant using ilmenite as oxygen carrier," Applied Energy, Elsevier, vol. 157(C), pages 288-294.
    4. Paul Dieringer & Falko Marx & Jochen Ströhle & Bernd Epple, 2023. "System Hydrodynamics of a 1 MW th Dual Circulating Fluidized Bed Chemical Looping Gasifier," Energies, MDPI, vol. 16(15), pages 1-46, July.
    5. Qimei Chen & Yurong Gou & Tangrong Wang & Pengbo Liu & Jianguo Zhu, 2024. "The Evolutionary Path and Emerging Trends of Circulating Fluidized Bed Technology: An Integrated Analysis through Bibliometric Assessment and Data Visualization," Energies, MDPI, vol. 17(14), pages 1-19, July.
    6. Siriwardane, Ranjani & Benincosa, William & Riley, Jarrett & Tian, Hanjing & Richards, George, 2016. "Investigation of reactions in a fluidized bed reactor during chemical looping combustion of coal/steam with copper oxide-iron oxide-alumina oxygen carrier," Applied Energy, Elsevier, vol. 183(C), pages 1550-1564.
    7. Falko Marx & Paul Dieringer & Jochen Ströhle & Bernd Epple, 2021. "Design of a 1 MW th Pilot Plant for Chemical Looping Gasification of Biogenic Residues," Energies, MDPI, vol. 14(9), pages 1-25, April.
    8. Lucia Blas & Patrick Dutournié & Mejdi Jeguirim & Ludovic Josien & David Chiche & Stephane Bertholin & Arnold Lambert, 2017. "Numerical Modeling of Oxygen Carrier Performances (NiO/NiAl 2 O 4 ) for Chemical-Looping Combustion," Energies, MDPI, vol. 10(7), pages 1-16, June.
    9. Schnellmann, Matthias A. & Donat, Felix & Scott, Stuart A. & Williams, Gareth & Dennis, John S., 2018. "The effect of different particle residence time distributions on the chemical looping combustion process," Applied Energy, Elsevier, vol. 216(C), pages 358-366.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:16:y:2023:i:21:p:7239-:d:1266776. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.